Try to find out the actual manufactuere and type of dye used on these CDRs with CDR Identifier. I have used Memorex, Maxwell and IBM but most are made by CMC and Princo and use cheap cyanine dyes even if they write properly. IBM brands are always on sale here, but i have never used any as my CDR inventory is full. Don't pay over $29cdn/50 for any of thoose !

Good: verbatim, kodak, sony, fuji However the others are trash except if the Memorex are made by Ritek than it's the best option of all discs. However most Memorex disc's in America seem to be CMC magnetics or Princo which aren't good in Europe they are most times Ritek and sometimes the other 2. So if you want to try these than first check with cd-r indentifier who is the manufacturer.

They are made in Taiwan. I have already used about 50 of them to back up some important data. (Cannot afford a Tape Drive right now). Do you think I should make another copy on something more reliable like Verbatim or Kodak just in case?